PHOENIX, Ariz. (KOLD News 13) - Arizona Gov. Doug Ducey has ordered flags at all state buildings to be flown at half-staff in honor of a Phoenix Police commander who died in the line of duty.

Cmdr. Greg Carnicle, a 31-year veteran of the Phoenix Police Department, was killed during a domestic violence call. He is survived by his wife and four children. (Source: Phoenix Police Department/Twitter)